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Katsumasa Nakai

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Patents Grantslast 30 patents

  • Information Patent Grant

    Colored fluorescent lamp assembly
    • Patent number 4,665,341
    • Issue date May 12, 1987
    • Matsushita Electric Works, Ltd.
    • Hiroshi Imamura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Tricolor fluorescent lamp
    • Patent number 4,625,152
    • Issue date Nov 25, 1986
    • Matsushita Electric Works, Ltd.
    • Katsumasa Nakai
    • H01 - BASIC ELECTRIC ELEMENTS